Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2014
Equity [Abstract]
Partnership Unit, Dividends, Per Share, Cash Paid	$ 0.085
Shares and Units [Abstract]
OP units outstanding (shares)	267,129,680		267,129,680
OP units owned by the Company (shares)	98,267,542		98,267,542
OP units owned by the Company, percent			36.80%
OP units not owned by the Company (shares)	168,862,138		168,862,138
OP units not owned by the Company, percent			63.20%
Dividends and Distributions [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.085	$ 0.085	$ 0.255
Dividends paid to common shareholders	$ 8.3		$ 24.6
Distributions paid to OP unitholders	$ 14.4		$ 39.9